Dust protection means



March 17, 1942. G. LoEDlNG 'DUST PROTECTION MEANS Filed Feb. 1:6, 1940All /l/ -supported a canopy I 3.

ICE

.DUST PROTECTION MEANS George Loeding, Chicago, lll'.

Application February 16, 1940, Serial No. 319,307

l1 Claims.

My invention relates to dust protection devices or guards.

In respect of show windows, or the like, the problem of protecting thegoods-displayed from dust is one which has proved troublesome. The

.greatest source of dustis from the spaee'between the ceiling and theflooring about where dust .may rest'thickly on the upper surface of theceiling. It is well knownthat because the reectors used, for example inlighting from ceilings do not t closely as a general rule with the ringsupon which theyare supported in the ceiling, endless dust seeps-throughthe gaps between the 'reectors and the supporting rings, particularly.when doors are opened causing suction to lift :the dust oi the upperportion of the ceiling.

Only-a merchant who has displayed expensive `light coloredga-rments,such as ermine-evening wraps, white silk evening gowns, etc. can fully.appreciate this trouble from 'above the ceiling.

An object of the invention isto provide means -f0r sealing `oifsuchdust'from the show window.

By my invention in its-preferred 'form I have provided an asbestos ringmade of strands of asbestos and held togetherl by wires with lhooks andveyes at the terminals of the wire, which Vring may be used to seal ofithe dust which otherwise would pour from above the ceiling around thelamp reectors.

`Another object has beenthe provision of such a device which is light,incombustible, inexpensive to produce andsimple to install.

Other objects and advantages will be more apparent hereinafter.

My invention may be best understood by reference to the accompanyingdrawing in which:

Fig. 1 is a vertical section showing the lighting means in'positon in aceiling and the dust protection means or -guard applied thereto;

Fig. 2 is a plan View of the supporting ring and 1 a reflector supportedon the ring illustrating the common lack oi"v registration between saidmeans and the opportunity of dust penetration;

Fig. 3 is aplan View of the dust protection K,

means or guard;

Fig. 4 is an enlarged elevation of a section of the guard; and

Fig. 5 is a section on the line 5-5 of Fig. 4.

The preferred form of my invention which has g;

provided with shade or reflector holding means M for a reilector I5.

I lhave discl'osedin-m-y-invention a common standard-form of reiiectorI5V having .an eccentric bottom edge Itproviding an eccentric opening.The reflector is adapted to be supported in the form shown upon the ringIl, which in the form shown is a standard common eccentric supportingring. The ring Il may have a vertically extending ange I8.' This flangeI8 may serve to' limit the'movement ofthe reector I5 on-the ring I6 andcause the opening in the reiiector-.to register in a general way withthe opening in the ring H. The ring I'i-is usually provided (with anextension I9 having holes 2'0 wherebyvthe ring is adapted to be fastenedtoa ceiling 2l by screws 22.

It will bereadily understood from the foregoing that according to thepractice now in use the lamps and reilectors just described are `located'in a space between the ceiling and the flooring above. When a Aworkmanwishes to do some work on the lamphe may reach in through the opening inthe ring Il and lift the reflector ofi the ange I8and move it aside andthen he may remove, if desired, the ring I'I. When he is ,nished he mayreplace the ring I'I first'and then reach in through thev opening I6,grasp the bulb, for example, and set the reflector down on the ringllwithin the flange I8.

Because, as a general rule the reflectors are .not made to fit the ringsor other supporting ineens, or for other reasons, there is invariably agap 23 of some kind which may besmaller or larger thanthe gap shown, orthere may be more than onegap. As a rule, under the'pracvtice at thepresent time, there is nothing to prevent the dust from the uppersurface of the ceiling, which dust settles quite thickly, from comingthrough-the gap and into, for example, the

-show window Yspace below the ceiling. If, for

' preciate the problem they present.

To remedy this matter I have provided means vwhich in the preferred formtakes the form of a ring 24 made of asbestos strands 25 which arekgrouped by means of twisted wire or wires 26 of straight lengths bentto form a relatively at structure or frame with a succession ofcrosswise, lateral or vertical loops in which the strands are held intransverse bunches or groups in flat matted form with the ends of thestrands extending on opposite sides of the wire or loops or otherequivalent means and then bent or coiled to form the ring such as shownin Figs. 1, 3, 4 and 5. The wire or wires may be formed at theirterminal portions with an eyelet 21 and a hook 28 for securing' the endsdetachably together. tecting means the dust guard may be secured aboutthe reflector I and allowed to drop down to the position shown in Fig. 1where the strands of asbestos on opposite sides of the wire may conformto the reflector and upper surface of the ceiling to form legs 29 whichmay be roughly at right angles to each other in the form shown with thecentral or wire portion of the ring loclated nearest the gap.

Experience has shown that with an arrangement like this, the displayroom is effectively sealed off from dust through any gap of any kind. Itwill be understood that in the installation of the form of dust guardthat I have shown, the dust guard may be inserted above the ceiling andaround the reflector and hooked at its ends to form a dust guardconforming to the shape of reflector used.

It will be understood that the dust guard may be made of any length, asdesired, and its use is not confined to any particular shape or type ofreflector. For example, in the case of lineal reectors, or shades, whichmay extend in a line around the edges of a ceiling, for example, theasbestos guard may be arranged similarly in reference to said linealinstallation of reflectors. It will also be understood that theinvention is not limited to asbestos, but other matted or fibrous orother dust impervious equivalent materials may be used.

While I have illustrated and described the preferred form ofconstruction for carrying my invention into effect, this is capable ofvariation and modification without departing from the spirit of theinvention. I, therefore, do not wish to be limited to the precisedetails of construction set forth, but desire to avail myself of suchvariations and modifications as come within the scope of the appendedclaims.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. In dust protection means for spaces or gaps between a reflector and aring upon which said reflector is adapted to be supported, forpreventing dust from passing through the space between said reiiectorand said ring, including a conforming asbestos guard formed of groups ofstrands of asbestos secured crosswise by a wire twisted to form loops inwhich said groups of strands are held, said wire having hook and eyemeans for securing the terminals of the guard together, said guard beingadapted to surround the reflector adjacent its bottom edge, and formlegs, one of which is adapted to lie against the reflector and the otheracross the space.

2. In a dust protection means, a guard for lighting fixtures such asceiling lamps and reflectors of show Windows and the like, consisting ofa flexible fiat strip of matted fire-proof material adapted to be bentand laid in the space between the ceiling and reflector of the lightingfixture and around the latter to prevent the downward passage of dustfrom above the ceiling and through the space between the same and Withthis form of dust guard or prothe reflector of the lighting fixture andaround the reflector.

3. A dust protection guard consisting of a fiat strip of matted materialadapted to be bent and mounted in a gap or space between a ceiling and alighting fixture reflector to prevent the passage of dust therethrough,said strip being composed of a flexible longitudinal member and groupsof short transverse asbestos strands extending transversely across andanchored intermediately of their ends to said longitudinal member andarranged in fiat continuous form throughout the length of said member,said member adapted for connection at the ends.

4. In a dust protection means, a guard for an inverted ceiling lamphaving a reflector extending into an opening in the ceiling andsupported on a ring positioned at the bottom of the opening, there beinga gap between the ceiling and the reflector, consisting of a flat stripfor positioning over and bridging said gap, said strip being composed ofan elongated anchoring member and nre-proof strands transversely acrosssaid member and anchored thereto at spaced points, the end portions ofsaid strands projecting from the member on opposite sides thereof andoverlapping continuously throughout the length of the member in dustimpervious relation and conforming to the upper surfaces of the ceilingand reflector to prevent the passage of dust through said gap.

5. In clust protection means, a guard adapted to prevent the passage ofdust consisting of a strip of fibrous fireproof material composed ofstrands running transversely of the strip and anchored intermediately oftheir ends with said ends projecting in opposite-directions at the sidesof the strip, the strip ends being adapted to be connected together.

6.` In dust protection means, a flexible member bent to form a ring andbunches of fireproof fibrous matted material anchored intermediately oftheir ends to said member and projecting in opposite directionstherefrom, said material adapted to be bent in angular form away fromsaid flat condition to engage two spaced members between which thepassage of dust is to be prevented.

7. In dust protection means, a guard adapted to prevent the passage ofdust as between a ceiling and a reflector of a light fixture, consistingof a strip of fibrous fireproof material and formed of groups of shortstrands of said material secured intermediately of their lengths by awire twisted to form loops to receive and secure said groups injuxtaposition.

8. In a guard to prevent the passage of dust between a light fixture anda ceiling or the like around the same consisting of twisted wires bentto form coplanar and longitudinally extending vertical loops, groups ofshort strands of fibrous material secured intermediately of theirlengths in said loops to form a flat structure of relatively uniformwidth from end to end with the top and bottom faces parallel andthickness and means to detachably connect the ends of the wires.

9. In a dust protection means, a guard adapted to prevent the passage ofdust between the reflector of a ceiling fixture and a gap between thesame and the ceiling consisting of a flat strip of fibrous lireproofmaterial composed of groups of transverse strands of said material andwires having spaced vertical loops in which said strands are heldintermediately of their lengths to form a continuous body with fiathorizontal top and bottom faces, said strands adapted to be bent insubstantially right angular relation to form legs to engage against theoutside of the reector and the top of the ceiling and cover the spacetherebetween whereby the passage of dust is prevented.

10. In a dust protection means, a guard adapted to prevent the passageof dust between the reflector of a ceiling xture and a gap between thesame and the ceiling consisting of a flat strip of brous iireproofmaterial composed of groups of strands of said material and wires havingspaced vertical loops in which said strands are held intermediately oftheir lengths, said strands adapted to be bent in substantially rightangular relation to form legs to engage against the outside of thereector and the top of the ceiling and cover the space therebetweenwhereby the passage of dust is prevented, said wires of the strip havingmeans for connecting its terminal ends.

11. A dust protection means of the class described consisting of abendable anchoring member running longitudinally and short bunches ofstrands of asbestos anchored intermediately of their lengths to saidanchoring member with the strands extending transversely of the memberand held thereby, said means adapted to be located so as to close anopening between a lighting t xture reilector and a ceiling or the liketo prevent the passage of dust, fwith the strands rest-y ing against thereector and the ceiling in substantially right angular form, and hookand eye means for securing the terminals of the anchoring membertogether.

GEORGE LOEDING.

